Comparison of the electrochemical reductions of Ru(II) complexes of dipyrido[3,2-a:2?3?c]phenazine and 10,12-dimethylpteridino[6,7-f][1,10]phenanthroline-11,13(10H,12H)-dione (an alloxazine analog) in aprotic and mixed aprotic/aqueous media

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• 作者：Waynie Olaprath ; Mark E. McGuire ; ^{memcguire@eiu.edu}
• 关键词：Electrochemical reduction ; Ru(II) complexes ; DNA intercalators ; Cyclic voltammetry ; Coulometry ; Dipyridophenazine
• 刊名：Inorganica Chimica Acta
• 出版年：2012
• 出版时间：30 March, 2012
• 年：2012
• 卷：383
• 期：Complete
• 页码：312-315
• 全文大小：390 K

文摘

We obtained and compared voltammetric and coulometric data on the ligand-centered reductions of the complexes [(bpy)₂Ru^II(dppz)]²⁺ (dppz = dipyrido[3,2-a:2?3?c]phenazine) and [(bpy)₂Ru^II(pptd)]²⁺ (pptd = 10,12-dimethylpteridino[6,7-f][1,10]phenanthroline-11,13(10H,12H)-dione; an alloxazine analog) in both aprotic (DMSO) and protic (80 mol % H₂O/DMSO pH ?.6) media. The (1e^{?/sup>) electrochemical behaviors in the aprotic environment were quite similar. However, in the protic media, the 2e?/sup> reduction for the dppz-complex showed very poor electrochemical reversibility compared to the pptd-complex.}